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Vulnerability record · CVE-2020-15277 · published 30 October 2020

CVE-2020-15277: Basercms unrestricted file upload vulnerability

Basercms · Basercms

baserCMS before version 4.4.1 is affected by Remote Code Execution (RCE). Code may be executed by logging in as a system administrator and uploading an executable script file such as a PHP file. The Edit template component is vulnerable. The issue is fixed in version 4.4.1.

7.2 CVSS 3.1 High EPSS 2.3% · top 17.2% CWE-434 · Unrestricted file upload
7.2CVSS 3.1 base score, v2 6.5
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

baserCMS before version 4.4.1 is affected by Remote Code Execution (RCE). Code may be executed by logging in as a system administrator and uploading an executable script file such as a PHP file. The Edit template component is vulnerable. The issue is fixed in version 4.4.1.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://basercms.net/security/20201029 Vendor Advisory
https://github.com/baserproject/basercms/commit/bb027c3967b0430adcff2d2fedbc23d39077563b PatchThird Party Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-6fmv-q269-55cw PatchThird Party Advisory
https://basercms.net/security/20201029 Vendor Advisory
https://github.com/baserproject/basercms/commit/bb027c3967b0430adcff2d2fedbc23d39077563b PatchThird Party Advisory
https://github.com/baserproject/basercms/security/advisories/GHSA-6fmv-q269-55cw PatchThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-15277), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.